115299136 has 14 divisors (see below), whose sum is σ = 228796850. Its totient is φ = 57649536.

The previous prime is 115299071. The next prime is 115299139. The reversal of 115299136 is 631992511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61716736 + 53582400 = 7856^2 + 7320^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115299095 and 115299104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115299139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900711 + ... + 900838.

Almost surely, 2^115299136 is an apocalyptic number.

115299136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

115299136 is a deficient number, since it is larger than the sum of its proper divisors (113497714).

115299136 is an equidigital number, since it uses as much as digits as its factorization.

115299136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801561 (or 1801551 counting only the distinct ones).

The product of its digits is 14580, while the sum is 37.

The square root of 115299136 is about 10737.7435245958. The cubic root of 115299136 is about 486.7156949000.

The spelling of 115299136 in words is "one hundred fifteen million, two hundred ninety-nine thousand, one hundred thirty-six".